// import Vue from 'vue'
// import Router from 'vue-router'
// import Login from './components/Login.vue'
// import Home from './components/Home.vue'

// Vue.use(Router)

// export default new Router({
//   routes: [
//   {path:'/',redirect:'login'},
//   {path:'/login',component:Login},
//   {path:'/home',component:Home}
//   ]
// })
// // 挂载路由守卫
// router.beforeEach((to, from, next) => {
//   // to and from are both route objects. must call `next`.
//   if(to.path==='/login') return next()
//   const tokenStr = window.sessionStorage.getItem('token')
//   if(!tokenStr) return next('/login')
//   next()
// })
// export default router

import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'
import Welcome from './components/Welcome.vue'
import Users from './components/Users.vue'
import Rights from './components/power/Rights.vue'
import Roles from './components/power/Roles.vue'
import Cate from './components/goods/Cate.vue'
import Params from './components/goods/Params.vue'

Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { 
      path: '/home', 
      component: Home,
      redirect: '/welcome',
      children:[
        {path:'/welcome',component:Welcome},
        {path:'/users',component:Users},
        {path:'/rights',component:Rights},
        {path:'/roles',component:Roles},
        {path:'/categories',component:Cate},
        {path:'/params',component:Params}
      ] 
    }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //     next()  放行    next('/login')  强制跳转

  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
